Last week I got home from work, hopped out, walked past the front of my truck, and there was like a pop/ting noise every 30-45 seconds.

It sounds like when you put a baking sheet in the oven, and the metal pops if this helps any.

I have never heard this noise from the passenger side around the manifold area.

Could it be a broken manifold stud/crack?

Or is this normal, and I’m going crazy?